Re: Fastest way to shrink/rewrite rbd image ?

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On 01/12/14 10:22, Alexandre DERUMIER wrote:
> 
> Yes, it's working fine.
> 
> (you need to use virtio-scsi and enable discard option)
> 

Does it work with virtio-blk if you attach the RBD as a LUN? Supposedly,
SCSI pass-through works in this mode, e.g.

<disk type='block' device='lun'>
  <target dev='vda' bus='virtio'/>
  ...
</disk>

However, it seems that virtio-scsi is slowly becoming preferred over
virtio-blk. Are there any disadvantages to using virtio-scsi now? Does
it support live migration?

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